Two days ago I was wearing my Aquaracer 500M (not a watch I would normally expect someone to ask if it was fake). But of course someone I worked with did ask. I told him "yes, it's a replica I bought from China". I could tell he wasn't familiar with nice watches, but I took it off and showed it to him. He looked at the face for a few seconds, then turned the watch over and saw the movement. Then he said "oh, it is real! Wow, this is a nice watch". I told him again it was a rep, but he just laughed like I was kidding. I couldn't convince him it was a rep and I think to this day he believes I'm just trying to dupe him.
Right after I got my DSSD, i was sitting right next to another guy I work with who wears a gen sub. I caught him out of the corner of my eye staring at my DSSD. A little later that day he came up to me and said he noticed my watch and commented on how much he liked it. He said "wow, those are pretty expensive though right? I paid $5000 for my submariner, but aren't those like twice that?" I told him, "yea normally, but I got a good deal on this one ...$400". Then I told him it was a rep and he was blown away. He asked me to see it and he studied it for a long time. I told him about the quality of higher end reps and he was amazed. He ended up asking me for the website!